Commit | Line | Data |
---|---|---|
ee0613d1 JG |
1 | /* Memory-access and commands for "inferior" (child) process, for GDB. |
2 | Copyright 1986, 1987, 1988, 1989, 1991, 1992 Free Software Foundation, Inc. | |
bd5635a1 RP |
3 | |
4 | This file is part of GDB. | |
5 | ||
ee0613d1 | 6 | This program is free software; you can redistribute it and/or modify |
bd5635a1 | 7 | it under the terms of the GNU General Public License as published by |
ee0613d1 JG |
8 | the Free Software Foundation; either version 2 of the License, or |
9 | (at your option) any later version. | |
bd5635a1 | 10 | |
ee0613d1 | 11 | This program is distributed in the hope that it will be useful, |
bd5635a1 RP |
12 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
13 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
14 | GNU General Public License for more details. | |
15 | ||
16 | You should have received a copy of the GNU General Public License | |
ee0613d1 JG |
17 | along with this program; if not, write to the Free Software |
18 | Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */ | |
bd5635a1 | 19 | |
1304f099 | 20 | #include "defs.h" |
bd5635a1 RP |
21 | #include <signal.h> |
22 | #include <sys/param.h> | |
23 | #include <string.h> | |
bd5635a1 | 24 | #include "symtab.h" |
1304f099 | 25 | #include "gdbtypes.h" |
bd5635a1 RP |
26 | #include "frame.h" |
27 | #include "inferior.h" | |
28 | #include "environ.h" | |
29 | #include "value.h" | |
30 | #include "gdbcmd.h" | |
31 | #include "gdbcore.h" | |
32 | #include "target.h" | |
33 | ||
1304f099 JG |
34 | static void |
35 | continue_command PARAMS ((char *, int)); | |
36 | ||
37 | static void | |
38 | until_next_command PARAMS ((int)); | |
39 | ||
40 | static void | |
41 | until_command PARAMS ((char *, int)); | |
42 | ||
43 | static void | |
44 | path_info PARAMS ((char *, int)); | |
45 | ||
46 | static void | |
47 | path_command PARAMS ((char *, int)); | |
48 | ||
49 | static void | |
50 | unset_command PARAMS ((char *, int)); | |
51 | ||
52 | static void | |
53 | float_info PARAMS ((char *, int)); | |
54 | ||
55 | static void | |
56 | detach_command PARAMS ((char *, int)); | |
57 | ||
58 | static void | |
59 | nofp_registers_info PARAMS ((char *, int)); | |
60 | ||
61 | static void | |
62 | all_registers_info PARAMS ((char *, int)); | |
63 | ||
64 | static void | |
65 | registers_info PARAMS ((char *, int)); | |
66 | ||
67 | static void | |
68 | do_registers_info PARAMS ((int, int)); | |
69 | ||
70 | static void | |
71 | unset_environment_command PARAMS ((char *, int)); | |
72 | ||
73 | static void | |
74 | set_environment_command PARAMS ((char *, int)); | |
75 | ||
76 | static void | |
77 | environment_info PARAMS ((char *, int)); | |
78 | ||
79 | static void | |
80 | program_info PARAMS ((char *, int)); | |
81 | ||
82 | static void | |
83 | finish_command PARAMS ((char *, int)); | |
84 | ||
85 | static void | |
86 | signal_command PARAMS ((char *, int)); | |
87 | ||
88 | static void | |
89 | jump_command PARAMS ((char *, int)); | |
90 | ||
91 | static void | |
92 | step_1 PARAMS ((int, int, char *)); | |
93 | ||
94 | static void | |
95 | nexti_command PARAMS ((char *, int)); | |
bd5635a1 | 96 | |
1304f099 JG |
97 | static void |
98 | stepi_command PARAMS ((char *, int)); | |
99 | ||
100 | static void | |
101 | next_command PARAMS ((char *, int)); | |
102 | ||
103 | static void | |
104 | step_command PARAMS ((char *, int)); | |
105 | ||
106 | static void | |
107 | run_command PARAMS ((char *, int)); | |
bd5635a1 RP |
108 | |
109 | #define ERROR_NO_INFERIOR \ | |
110 | if (!target_has_execution) error ("The program is not being run."); | |
111 | ||
112 | /* String containing arguments to give to the program, separated by spaces. | |
113 | Empty string (pointer to '\0') means no args. */ | |
114 | ||
115 | static char *inferior_args; | |
116 | ||
117 | /* File name for default use for standard in/out in the inferior. */ | |
118 | ||
119 | char *inferior_io_terminal; | |
120 | ||
121 | /* Pid of our debugged inferior, or 0 if no inferior now. | |
122 | Since various parts of infrun.c test this to see whether there is a program | |
123 | being debugged it should be nonzero (currently 3 is used) for remote | |
124 | debugging. */ | |
125 | ||
126 | int inferior_pid; | |
127 | ||
128 | /* Last signal that the inferior received (why it stopped). */ | |
129 | ||
130 | int stop_signal; | |
131 | ||
132 | /* Address at which inferior stopped. */ | |
133 | ||
134 | CORE_ADDR stop_pc; | |
135 | ||
136 | /* Stack frame when program stopped. */ | |
137 | ||
138 | FRAME_ADDR stop_frame_address; | |
139 | ||
140 | /* Chain containing status of breakpoint(s) that we have stopped at. */ | |
141 | ||
142 | bpstat stop_bpstat; | |
143 | ||
144 | /* Flag indicating that a command has proceeded the inferior past the | |
145 | current breakpoint. */ | |
146 | ||
147 | int breakpoint_proceeded; | |
148 | ||
149 | /* Nonzero if stopped due to a step command. */ | |
150 | ||
151 | int stop_step; | |
152 | ||
153 | /* Nonzero if stopped due to completion of a stack dummy routine. */ | |
154 | ||
155 | int stop_stack_dummy; | |
156 | ||
157 | /* Nonzero if stopped due to a random (unexpected) signal in inferior | |
158 | process. */ | |
159 | ||
160 | int stopped_by_random_signal; | |
161 | ||
162 | /* Range to single step within. | |
163 | If this is nonzero, respond to a single-step signal | |
164 | by continuing to step if the pc is in this range. */ | |
165 | ||
166 | CORE_ADDR step_range_start; /* Inclusive */ | |
167 | CORE_ADDR step_range_end; /* Exclusive */ | |
168 | ||
169 | /* Stack frame address as of when stepping command was issued. | |
170 | This is how we know when we step into a subroutine call, | |
171 | and how to set the frame for the breakpoint used to step out. */ | |
172 | ||
173 | FRAME_ADDR step_frame_address; | |
174 | ||
175 | /* 1 means step over all subroutine calls. | |
176 | -1 means step over calls to undebuggable functions. */ | |
177 | ||
178 | int step_over_calls; | |
179 | ||
180 | /* If stepping, nonzero means step count is > 1 | |
181 | so don't print frame next time inferior stops | |
182 | if it stops due to stepping. */ | |
183 | ||
184 | int step_multi; | |
185 | ||
186 | /* Environment to use for running inferior, | |
187 | in format described in environ.h. */ | |
188 | ||
189 | struct environ *inferior_environ; | |
190 | ||
bd5635a1 | 191 | \f |
e1ce8aa5 | 192 | /* ARGSUSED */ |
bd5635a1 RP |
193 | void |
194 | tty_command (file, from_tty) | |
195 | char *file; | |
196 | int from_tty; | |
197 | { | |
198 | if (file == 0) | |
199 | error_no_arg ("terminal name for running target process"); | |
200 | ||
201 | inferior_io_terminal = savestring (file, strlen (file)); | |
202 | } | |
203 | ||
204 | static void | |
205 | run_command (args, from_tty) | |
206 | char *args; | |
207 | int from_tty; | |
208 | { | |
209 | char *exec_file; | |
210 | ||
211 | dont_repeat (); | |
212 | ||
213 | if (inferior_pid) | |
214 | { | |
215 | if ( | |
216 | !query ("The program being debugged has been started already.\n\ | |
217 | Start it from the beginning? ")) | |
218 | error ("Program not restarted."); | |
ee0613d1 | 219 | target_kill (); |
bd5635a1 RP |
220 | } |
221 | ||
222 | exec_file = (char *) get_exec_file (0); | |
223 | ||
1304f099 | 224 | /* The exec file is re-read every time we do a generic_mourn_inferior, so |
bd5635a1 RP |
225 | we just have to worry about the symbol file. */ |
226 | reread_symbols (); | |
227 | ||
228 | if (args) | |
229 | { | |
230 | char *cmd; | |
ee0613d1 | 231 | cmd = concat ("set args ", args, NULL); |
bd5635a1 RP |
232 | make_cleanup (free, cmd); |
233 | execute_command (cmd, from_tty); | |
234 | } | |
235 | ||
236 | if (from_tty) | |
237 | { | |
1304f099 | 238 | printf_filtered ("Starting program: %s %s\n", |
bd5635a1 RP |
239 | exec_file? exec_file: "", inferior_args); |
240 | fflush (stdout); | |
241 | } | |
242 | ||
243 | target_create_inferior (exec_file, inferior_args, | |
244 | environ_vector (inferior_environ)); | |
245 | } | |
246 | \f | |
1304f099 | 247 | static void |
bd5635a1 RP |
248 | continue_command (proc_count_exp, from_tty) |
249 | char *proc_count_exp; | |
250 | int from_tty; | |
251 | { | |
252 | ERROR_NO_INFERIOR; | |
253 | ||
254 | /* If have argument, set proceed count of breakpoint we stopped at. */ | |
255 | ||
256 | if (proc_count_exp != NULL) | |
257 | { | |
258 | bpstat bs = stop_bpstat; | |
259 | int num = bpstat_num (&bs); | |
260 | if (num == 0 && from_tty) | |
261 | { | |
262 | printf_filtered | |
263 | ("Not stopped at any breakpoint; argument ignored.\n"); | |
264 | } | |
265 | while (num != 0) | |
266 | { | |
267 | set_ignore_count (num, | |
268 | parse_and_eval_address (proc_count_exp) - 1, | |
269 | from_tty); | |
270 | /* set_ignore_count prints a message ending with a period. | |
271 | So print two spaces before "Continuing.". */ | |
272 | if (from_tty) | |
1304f099 | 273 | printf_filtered (" "); |
bd5635a1 RP |
274 | num = bpstat_num (&bs); |
275 | } | |
276 | } | |
277 | ||
278 | if (from_tty) | |
1304f099 | 279 | printf_filtered ("Continuing.\n"); |
bd5635a1 RP |
280 | |
281 | clear_proceed_status (); | |
282 | ||
283 | proceed ((CORE_ADDR) -1, -1, 0); | |
284 | } | |
285 | \f | |
286 | /* Step until outside of current statement. */ | |
bd5635a1 | 287 | |
e1ce8aa5 | 288 | /* ARGSUSED */ |
bd5635a1 RP |
289 | static void |
290 | step_command (count_string, from_tty) | |
1304f099 | 291 | char *count_string; |
bd5635a1 RP |
292 | int from_tty; |
293 | { | |
294 | step_1 (0, 0, count_string); | |
295 | } | |
296 | ||
297 | /* Likewise, but skip over subroutine calls as if single instructions. */ | |
298 | ||
e1ce8aa5 | 299 | /* ARGSUSED */ |
bd5635a1 RP |
300 | static void |
301 | next_command (count_string, from_tty) | |
1304f099 | 302 | char *count_string; |
bd5635a1 RP |
303 | int from_tty; |
304 | { | |
305 | step_1 (1, 0, count_string); | |
306 | } | |
307 | ||
308 | /* Likewise, but step only one instruction. */ | |
309 | ||
e1ce8aa5 | 310 | /* ARGSUSED */ |
bd5635a1 RP |
311 | static void |
312 | stepi_command (count_string, from_tty) | |
1304f099 | 313 | char *count_string; |
bd5635a1 RP |
314 | int from_tty; |
315 | { | |
316 | step_1 (0, 1, count_string); | |
317 | } | |
318 | ||
e1ce8aa5 | 319 | /* ARGSUSED */ |
bd5635a1 RP |
320 | static void |
321 | nexti_command (count_string, from_tty) | |
1304f099 | 322 | char *count_string; |
bd5635a1 RP |
323 | int from_tty; |
324 | { | |
325 | step_1 (1, 1, count_string); | |
326 | } | |
327 | ||
328 | static void | |
329 | step_1 (skip_subroutines, single_inst, count_string) | |
330 | int skip_subroutines; | |
331 | int single_inst; | |
332 | char *count_string; | |
333 | { | |
334 | register int count = 1; | |
335 | FRAME fr; | |
1304f099 | 336 | struct cleanup *cleanups = 0; |
bd5635a1 RP |
337 | |
338 | ERROR_NO_INFERIOR; | |
339 | count = count_string ? parse_and_eval_address (count_string) : 1; | |
340 | ||
1304f099 JG |
341 | if (!single_inst || skip_subroutines) /* leave si command alone */ |
342 | { | |
343 | enable_longjmp_breakpoint(); | |
344 | cleanups = make_cleanup(disable_longjmp_breakpoint, 0); | |
345 | } | |
346 | ||
bd5635a1 RP |
347 | for (; count > 0; count--) |
348 | { | |
349 | clear_proceed_status (); | |
350 | ||
bd5635a1 RP |
351 | fr = get_current_frame (); |
352 | if (!fr) /* Avoid coredump here. Why tho? */ | |
353 | error ("No current frame"); | |
354 | step_frame_address = FRAME_FP (fr); | |
355 | ||
356 | if (! single_inst) | |
357 | { | |
358 | find_pc_line_pc_range (stop_pc, &step_range_start, &step_range_end); | |
359 | if (step_range_end == 0) | |
360 | { | |
1304f099 | 361 | struct minimal_symbol *msymbol; |
bd5635a1 | 362 | |
1304f099 | 363 | msymbol = lookup_minimal_symbol_by_pc (stop_pc); |
bd5635a1 | 364 | target_terminal_ours (); |
1304f099 | 365 | printf_filtered ("Current function has no line number information.\n"); |
bd5635a1 RP |
366 | fflush (stdout); |
367 | ||
368 | /* No info or after _etext ("Can't happen") */ | |
1304f099 | 369 | if (msymbol == NULL || (msymbol + 1) -> name == NULL) |
bd5635a1 RP |
370 | error ("No data available on pc function."); |
371 | ||
1304f099 | 372 | printf_filtered ("Single stepping until function exit.\n"); |
bd5635a1 RP |
373 | fflush (stdout); |
374 | ||
1304f099 JG |
375 | step_range_start = msymbol -> address; |
376 | step_range_end = (msymbol + 1) -> address; | |
bd5635a1 RP |
377 | } |
378 | } | |
379 | else | |
380 | { | |
381 | /* Say we are stepping, but stop after one insn whatever it does. | |
382 | Don't step through subroutine calls even to undebuggable | |
383 | functions. */ | |
384 | step_range_start = step_range_end = 1; | |
385 | if (!skip_subroutines) | |
386 | step_over_calls = 0; | |
387 | } | |
388 | ||
389 | if (skip_subroutines) | |
390 | step_over_calls = 1; | |
391 | ||
392 | step_multi = (count > 1); | |
393 | proceed ((CORE_ADDR) -1, -1, 1); | |
394 | if (! stop_step) | |
395 | break; | |
396 | #if defined (SHIFT_INST_REGS) | |
397 | write_register (NNPC_REGNUM, read_register (NPC_REGNUM)); | |
398 | write_register (NPC_REGNUM, read_register (PC_REGNUM)); | |
399 | #endif | |
400 | } | |
1304f099 JG |
401 | |
402 | if (!single_inst || skip_subroutines) | |
403 | do_cleanups(cleanups); | |
bd5635a1 RP |
404 | } |
405 | \f | |
406 | /* Continue program at specified address. */ | |
407 | ||
408 | static void | |
409 | jump_command (arg, from_tty) | |
410 | char *arg; | |
411 | int from_tty; | |
412 | { | |
413 | register CORE_ADDR addr; | |
414 | struct symtabs_and_lines sals; | |
415 | struct symtab_and_line sal; | |
b4fde6fa FF |
416 | struct symbol *fn; |
417 | struct symbol *sfn; | |
418 | char *fname; | |
419 | struct cleanup *back_to; | |
bd5635a1 RP |
420 | |
421 | ERROR_NO_INFERIOR; | |
422 | ||
423 | if (!arg) | |
424 | error_no_arg ("starting address"); | |
425 | ||
426 | sals = decode_line_spec_1 (arg, 1); | |
427 | if (sals.nelts != 1) | |
428 | { | |
429 | error ("Unreasonable jump request"); | |
430 | } | |
431 | ||
432 | sal = sals.sals[0]; | |
1304f099 | 433 | free ((PTR)sals.sals); |
bd5635a1 RP |
434 | |
435 | if (sal.symtab == 0 && sal.pc == 0) | |
436 | error ("No source file has been specified."); | |
437 | ||
ee0613d1 | 438 | resolve_sal_pc (&sal); /* May error out */ |
bd5635a1 | 439 | |
b4fde6fa FF |
440 | /* See if we are trying to jump to another function. */ |
441 | fn = get_frame_function (get_current_frame ()); | |
442 | sfn = find_pc_function (sal.pc); | |
443 | if (fn != NULL && sfn != fn) | |
444 | { | |
445 | fname = strdup_demangled (SYMBOL_NAME (fn)); | |
446 | back_to = make_cleanup (free, fname); | |
447 | if (!query ("Line %d is not in `%s'. Jump anyway? ", sal.line, fname)) | |
448 | { | |
449 | error ("Not confirmed."); | |
450 | /* NOTREACHED */ | |
451 | } | |
452 | do_cleanups (back_to); | |
453 | } | |
bd5635a1 | 454 | |
bd5635a1 RP |
455 | addr = ADDR_BITS_SET (sal.pc); |
456 | ||
457 | if (from_tty) | |
1304f099 | 458 | printf_filtered ("Continuing at %s.\n", local_hex_string(addr)); |
bd5635a1 RP |
459 | |
460 | clear_proceed_status (); | |
461 | proceed (addr, 0, 0); | |
462 | } | |
463 | ||
464 | /* Continue program giving it specified signal. */ | |
465 | ||
466 | static void | |
467 | signal_command (signum_exp, from_tty) | |
468 | char *signum_exp; | |
469 | int from_tty; | |
470 | { | |
471 | register int signum; | |
472 | ||
473 | dont_repeat (); /* Too dangerous. */ | |
474 | ERROR_NO_INFERIOR; | |
475 | ||
476 | if (!signum_exp) | |
477 | error_no_arg ("signal number"); | |
478 | ||
479 | signum = parse_and_eval_address (signum_exp); | |
480 | ||
481 | if (from_tty) | |
1304f099 | 482 | printf_filtered ("Continuing with signal %d.\n", signum); |
bd5635a1 RP |
483 | |
484 | clear_proceed_status (); | |
485 | proceed (stop_pc, signum, 0); | |
486 | } | |
487 | ||
488 | /* Execute a "stack dummy", a piece of code stored in the stack | |
489 | by the debugger to be executed in the inferior. | |
490 | ||
491 | To call: first, do PUSH_DUMMY_FRAME. | |
492 | Then push the contents of the dummy. It should end with a breakpoint insn. | |
493 | Then call here, passing address at which to start the dummy. | |
494 | ||
495 | The contents of all registers are saved before the dummy frame is popped | |
496 | and copied into the buffer BUFFER. | |
497 | ||
498 | The dummy's frame is automatically popped whenever that break is hit. | |
499 | If that is the first time the program stops, run_stack_dummy | |
500 | returns to its caller with that frame already gone. | |
501 | Otherwise, the caller never gets returned to. */ | |
502 | ||
ee0613d1 | 503 | /* DEBUG HOOK: 4 => return instead of letting the stack dummy run. */ |
bd5635a1 RP |
504 | |
505 | static int stack_dummy_testing = 0; | |
506 | ||
507 | void | |
508 | run_stack_dummy (addr, buffer) | |
509 | CORE_ADDR addr; | |
510 | char buffer[REGISTER_BYTES]; | |
511 | { | |
512 | /* Now proceed, having reached the desired place. */ | |
513 | clear_proceed_status (); | |
514 | if (stack_dummy_testing & 4) | |
515 | { | |
516 | POP_FRAME; | |
517 | return; | |
518 | } | |
519 | proceed_to_finish = 1; /* We want stop_registers, please... */ | |
520 | proceed (addr, 0, 0); | |
521 | ||
522 | if (!stop_stack_dummy) | |
523 | /* This used to say | |
524 | "Cannot continue previously requested operation". */ | |
525 | error ("\ | |
526 | The program being debugged stopped while in a function called from GDB.\n\ | |
527 | The expression which contained the function call has been discarded."); | |
528 | ||
529 | /* On return, the stack dummy has been popped already. */ | |
530 | ||
51b57ded | 531 | (void) memcpy (buffer, stop_registers, sizeof stop_registers); |
bd5635a1 RP |
532 | } |
533 | \f | |
534 | /* Proceed until we reach a different source line with pc greater than | |
535 | our current one or exit the function. We skip calls in both cases. | |
536 | ||
537 | Note that eventually this command should probably be changed so | |
538 | that only source lines are printed out when we hit the breakpoint | |
539 | we set. I'm going to postpone this until after a hopeful rewrite | |
540 | of wait_for_inferior and the proceed status code. -- randy */ | |
541 | ||
e1ce8aa5 | 542 | /* ARGSUSED */ |
1304f099 | 543 | static void |
bd5635a1 RP |
544 | until_next_command (from_tty) |
545 | int from_tty; | |
546 | { | |
547 | FRAME frame; | |
548 | CORE_ADDR pc; | |
549 | struct symbol *func; | |
550 | struct symtab_and_line sal; | |
551 | ||
552 | clear_proceed_status (); | |
553 | ||
554 | frame = get_current_frame (); | |
555 | ||
556 | /* Step until either exited from this function or greater | |
557 | than the current line (if in symbolic section) or pc (if | |
558 | not). */ | |
559 | ||
560 | pc = read_pc (); | |
561 | func = find_pc_function (pc); | |
562 | ||
563 | if (!func) | |
564 | { | |
1304f099 | 565 | struct minimal_symbol *msymbol = lookup_minimal_symbol_by_pc (pc); |
bd5635a1 | 566 | |
1304f099 | 567 | if (msymbol == NULL) |
bd5635a1 RP |
568 | error ("Execution is not within a known function."); |
569 | ||
1304f099 | 570 | step_range_start = msymbol -> address; |
bd5635a1 RP |
571 | step_range_end = pc; |
572 | } | |
573 | else | |
574 | { | |
575 | sal = find_pc_line (pc, 0); | |
576 | ||
577 | step_range_start = BLOCK_START (SYMBOL_BLOCK_VALUE (func)); | |
578 | step_range_end = sal.end; | |
579 | } | |
580 | ||
581 | step_over_calls = 1; | |
582 | step_frame_address = FRAME_FP (frame); | |
583 | ||
584 | step_multi = 0; /* Only one call to proceed */ | |
585 | ||
586 | proceed ((CORE_ADDR) -1, -1, 1); | |
587 | } | |
588 | ||
1304f099 | 589 | static void |
bd5635a1 RP |
590 | until_command (arg, from_tty) |
591 | char *arg; | |
592 | int from_tty; | |
593 | { | |
594 | if (!target_has_execution) | |
595 | error ("The program is not running."); | |
596 | if (arg) | |
597 | until_break_command (arg, from_tty); | |
598 | else | |
599 | until_next_command (from_tty); | |
600 | } | |
601 | \f | |
602 | /* "finish": Set a temporary breakpoint at the place | |
603 | the selected frame will return to, then continue. */ | |
604 | ||
605 | static void | |
606 | finish_command (arg, from_tty) | |
607 | char *arg; | |
608 | int from_tty; | |
609 | { | |
610 | struct symtab_and_line sal; | |
611 | register FRAME frame; | |
612 | struct frame_info *fi; | |
613 | register struct symbol *function; | |
1304f099 JG |
614 | struct breakpoint *breakpoint; |
615 | struct cleanup *old_chain; | |
bd5635a1 RP |
616 | |
617 | if (arg) | |
618 | error ("The \"finish\" command does not take any arguments."); | |
619 | if (!target_has_execution) | |
620 | error ("The program is not running."); | |
777bef06 JK |
621 | if (selected_frame == NULL) |
622 | error ("No selected frame."); | |
bd5635a1 RP |
623 | |
624 | frame = get_prev_frame (selected_frame); | |
625 | if (frame == 0) | |
626 | error ("\"finish\" not meaningful in the outermost frame."); | |
627 | ||
628 | clear_proceed_status (); | |
629 | ||
630 | fi = get_frame_info (frame); | |
631 | sal = find_pc_line (fi->pc, 0); | |
632 | sal.pc = fi->pc; | |
1304f099 JG |
633 | |
634 | breakpoint = set_momentary_breakpoint (sal, frame, bp_finish); | |
635 | ||
636 | old_chain = make_cleanup(delete_breakpoint, breakpoint); | |
bd5635a1 RP |
637 | |
638 | /* Find the function we will return from. */ | |
639 | ||
640 | fi = get_frame_info (selected_frame); | |
641 | function = find_pc_function (fi->pc); | |
642 | ||
ee0613d1 JG |
643 | /* Print info on the selected frame, including level number |
644 | but not source. */ | |
bd5635a1 RP |
645 | if (from_tty) |
646 | { | |
ee0613d1 JG |
647 | printf_filtered ("Run till exit from "); |
648 | print_stack_frame (selected_frame, selected_frame_level, 0); | |
bd5635a1 RP |
649 | } |
650 | ||
651 | proceed_to_finish = 1; /* We want stop_registers, please... */ | |
652 | proceed ((CORE_ADDR) -1, -1, 0); | |
653 | ||
1304f099 JG |
654 | /* Did we stop at our breakpoint? */ |
655 | if (bpstat_find_breakpoint(stop_bpstat, breakpoint) != NULL | |
656 | && function != 0) | |
bd5635a1 RP |
657 | { |
658 | struct type *value_type; | |
659 | register value val; | |
660 | CORE_ADDR funcaddr; | |
661 | ||
662 | value_type = TYPE_TARGET_TYPE (SYMBOL_TYPE (function)); | |
663 | if (!value_type) | |
664 | fatal ("internal: finish_command: function has no target type"); | |
665 | ||
666 | if (TYPE_CODE (value_type) == TYPE_CODE_VOID) | |
667 | return; | |
668 | ||
669 | funcaddr = BLOCK_START (SYMBOL_BLOCK_VALUE (function)); | |
670 | ||
671 | val = value_being_returned (value_type, stop_registers, | |
672 | using_struct_return (value_of_variable (function), | |
673 | funcaddr, | |
674 | value_type, | |
675 | BLOCK_GCC_COMPILED (SYMBOL_BLOCK_VALUE (function)))); | |
676 | ||
ee0613d1 | 677 | printf_filtered ("Value returned is $%d = ", record_latest_value (val)); |
bd5635a1 | 678 | value_print (val, stdout, 0, Val_no_prettyprint); |
ee0613d1 | 679 | printf_filtered ("\n"); |
bd5635a1 | 680 | } |
1304f099 | 681 | do_cleanups(old_chain); |
bd5635a1 RP |
682 | } |
683 | \f | |
e1ce8aa5 | 684 | /* ARGSUSED */ |
bd5635a1 RP |
685 | static void |
686 | program_info (args, from_tty) | |
687 | char *args; | |
688 | int from_tty; | |
689 | { | |
690 | bpstat bs = stop_bpstat; | |
691 | int num = bpstat_num (&bs); | |
692 | ||
693 | if (!target_has_execution) | |
694 | { | |
1304f099 | 695 | printf_filtered ("The program being debugged is not being run.\n"); |
bd5635a1 RP |
696 | return; |
697 | } | |
698 | ||
699 | target_files_info (); | |
1304f099 | 700 | printf_filtered ("Program stopped at %s.\n", local_hex_string(stop_pc)); |
bd5635a1 | 701 | if (stop_step) |
1304f099 | 702 | printf_filtered ("It stopped after being stepped.\n"); |
bd5635a1 RP |
703 | else if (num != 0) |
704 | { | |
705 | /* There may be several breakpoints in the same place, so this | |
706 | isn't as strange as it seems. */ | |
707 | while (num != 0) | |
708 | { | |
709 | if (num < 0) | |
1304f099 | 710 | printf_filtered ("It stopped at a breakpoint that has since been deleted.\n"); |
bd5635a1 | 711 | else |
1304f099 | 712 | printf_filtered ("It stopped at breakpoint %d.\n", num); |
bd5635a1 RP |
713 | num = bpstat_num (&bs); |
714 | } | |
715 | } | |
716 | else if (stop_signal) { | |
717 | #ifdef PRINT_RANDOM_SIGNAL | |
718 | PRINT_RANDOM_SIGNAL (stop_signal); | |
719 | #else | |
1304f099 JG |
720 | printf_filtered ("It stopped with signal %d (%s).\n", |
721 | stop_signal, safe_strsignal (stop_signal)); | |
bd5635a1 RP |
722 | #endif |
723 | } | |
724 | ||
725 | if (!from_tty) | |
1304f099 | 726 | printf_filtered ("Type \"info stack\" or \"info registers\" for more information.\n"); |
bd5635a1 RP |
727 | } |
728 | \f | |
729 | static void | |
1304f099 | 730 | environment_info (var, from_tty) |
bd5635a1 | 731 | char *var; |
1304f099 | 732 | int from_tty; |
bd5635a1 RP |
733 | { |
734 | if (var) | |
735 | { | |
736 | register char *val = get_in_environ (inferior_environ, var); | |
737 | if (val) | |
1304f099 | 738 | printf_filtered ("%s = %s\n", var, val); |
bd5635a1 | 739 | else |
1304f099 | 740 | printf_filtered ("Environment variable \"%s\" not defined.\n", var); |
bd5635a1 RP |
741 | } |
742 | else | |
743 | { | |
744 | register char **vector = environ_vector (inferior_environ); | |
745 | while (*vector) | |
1304f099 | 746 | printf_filtered ("%s\n", *vector++); |
bd5635a1 RP |
747 | } |
748 | } | |
749 | ||
750 | static void | |
1304f099 | 751 | set_environment_command (arg, from_tty) |
bd5635a1 | 752 | char *arg; |
1304f099 | 753 | int from_tty; |
bd5635a1 RP |
754 | { |
755 | register char *p, *val, *var; | |
756 | int nullset = 0; | |
757 | ||
758 | if (arg == 0) | |
759 | error_no_arg ("environment variable and value"); | |
760 | ||
761 | /* Find seperation between variable name and value */ | |
762 | p = (char *) strchr (arg, '='); | |
763 | val = (char *) strchr (arg, ' '); | |
764 | ||
765 | if (p != 0 && val != 0) | |
766 | { | |
767 | /* We have both a space and an equals. If the space is before the | |
768 | equals and the only thing between the two is more space, use | |
769 | the equals */ | |
770 | if (p > val) | |
771 | while (*val == ' ') | |
772 | val++; | |
773 | ||
774 | /* Take the smaller of the two. If there was space before the | |
775 | "=", they will be the same right now. */ | |
776 | p = arg + min (p - arg, val - arg); | |
777 | } | |
778 | else if (val != 0 && p == 0) | |
779 | p = val; | |
780 | ||
781 | if (p == arg) | |
782 | error_no_arg ("environment variable to set"); | |
783 | ||
784 | if (p == 0 || p[1] == 0) | |
785 | { | |
786 | nullset = 1; | |
787 | if (p == 0) | |
788 | p = arg + strlen (arg); /* So that savestring below will work */ | |
789 | } | |
790 | else | |
791 | { | |
792 | /* Not setting variable value to null */ | |
793 | val = p + 1; | |
794 | while (*val == ' ' || *val == '\t') | |
795 | val++; | |
796 | } | |
797 | ||
798 | while (p != arg && (p[-1] == ' ' || p[-1] == '\t')) p--; | |
799 | ||
800 | var = savestring (arg, p - arg); | |
801 | if (nullset) | |
802 | { | |
1304f099 | 803 | printf_filtered ("Setting environment variable \"%s\" to null value.\n", var); |
bd5635a1 RP |
804 | set_in_environ (inferior_environ, var, ""); |
805 | } | |
806 | else | |
807 | set_in_environ (inferior_environ, var, val); | |
808 | free (var); | |
809 | } | |
810 | ||
811 | static void | |
812 | unset_environment_command (var, from_tty) | |
813 | char *var; | |
814 | int from_tty; | |
815 | { | |
816 | if (var == 0) | |
817 | { | |
818 | /* If there is no argument, delete all environment variables. | |
819 | Ask for confirmation if reading from the terminal. */ | |
820 | if (!from_tty || query ("Delete all environment variables? ")) | |
821 | { | |
822 | free_environ (inferior_environ); | |
823 | inferior_environ = make_environ (); | |
824 | } | |
825 | } | |
826 | else | |
827 | unset_in_environ (inferior_environ, var); | |
828 | } | |
829 | ||
830 | /* Handle the execution path (PATH variable) */ | |
831 | ||
832 | const static char path_var_name[] = "PATH"; | |
833 | ||
e1ce8aa5 | 834 | /* ARGSUSED */ |
1304f099 | 835 | static void |
bd5635a1 RP |
836 | path_info (args, from_tty) |
837 | char *args; | |
838 | int from_tty; | |
839 | { | |
1304f099 | 840 | printf_filtered ("Executable and object file path: %s\n", |
bd5635a1 RP |
841 | get_in_environ (inferior_environ, path_var_name)); |
842 | } | |
843 | ||
844 | /* Add zero or more directories to the front of the execution path. */ | |
845 | ||
1304f099 | 846 | static void |
bd5635a1 RP |
847 | path_command (dirname, from_tty) |
848 | char *dirname; | |
849 | int from_tty; | |
850 | { | |
851 | char *exec_path; | |
852 | ||
853 | dont_repeat (); | |
854 | exec_path = strsave (get_in_environ (inferior_environ, path_var_name)); | |
e1ce8aa5 | 855 | mod_path (dirname, &exec_path); |
bd5635a1 RP |
856 | set_in_environ (inferior_environ, path_var_name, exec_path); |
857 | free (exec_path); | |
858 | if (from_tty) | |
e1ce8aa5 | 859 | path_info ((char *)NULL, from_tty); |
bd5635a1 RP |
860 | } |
861 | \f | |
862 | CORE_ADDR | |
863 | read_pc () | |
864 | { | |
865 | return ADDR_BITS_REMOVE ((CORE_ADDR) read_register (PC_REGNUM)); | |
866 | } | |
867 | ||
868 | void | |
869 | write_pc (val) | |
870 | CORE_ADDR val; | |
871 | { | |
872 | write_register (PC_REGNUM, (long) val); | |
873 | #ifdef NPC_REGNUM | |
874 | write_register (NPC_REGNUM, (long) val+4); | |
875 | #endif | |
876 | pc_changed = 0; | |
877 | } | |
878 | ||
1304f099 | 879 | const char * const reg_names[] = REGISTER_NAMES; |
bd5635a1 RP |
880 | |
881 | /* Print out the machine register regnum. If regnum is -1, | |
ee0613d1 JG |
882 | print all registers (fpregs == 1) or all non-float registers |
883 | (fpregs == 0). | |
884 | ||
bd5635a1 RP |
885 | For most machines, having all_registers_info() print the |
886 | register(s) one per line is good enough. If a different format | |
ee0613d1 | 887 | is required, (eg, for MIPS or Pyramid 90x, which both have |
bd5635a1 | 888 | lots of regs), or there is an existing convention for showing |
ee0613d1 | 889 | all the registers, define the macro DO_REGISTERS_INFO(regnum, fp) |
bd5635a1 | 890 | to provide that format. */ |
ee0613d1 | 891 | |
bd5635a1 | 892 | #if !defined (DO_REGISTERS_INFO) |
ee0613d1 JG |
893 | #define DO_REGISTERS_INFO(regnum, fp) do_registers_info(regnum, fp) |
894 | static void | |
895 | do_registers_info (regnum, fpregs) | |
bd5635a1 | 896 | int regnum; |
ee0613d1 | 897 | int fpregs; |
bd5635a1 RP |
898 | { |
899 | register int i; | |
900 | ||
bd5635a1 RP |
901 | for (i = 0; i < NUM_REGS; i++) |
902 | { | |
903 | char raw_buffer[MAX_REGISTER_RAW_SIZE]; | |
904 | char virtual_buffer[MAX_REGISTER_VIRTUAL_SIZE]; | |
905 | ||
ee0613d1 JG |
906 | /* Decide between printing all regs, nonfloat regs, or specific reg. */ |
907 | if (regnum == -1) { | |
908 | if (TYPE_CODE (REGISTER_VIRTUAL_TYPE (i)) == TYPE_CODE_FLT && !fpregs) | |
909 | continue; | |
910 | } else { | |
911 | if (i != regnum) | |
912 | continue; | |
913 | } | |
bd5635a1 RP |
914 | |
915 | fputs_filtered (reg_names[i], stdout); | |
916 | print_spaces_filtered (15 - strlen (reg_names[i]), stdout); | |
917 | ||
918 | /* Get the data in raw format, then convert also to virtual format. */ | |
919 | if (read_relative_register_raw_bytes (i, raw_buffer)) | |
920 | { | |
921 | printf_filtered ("Invalid register contents\n"); | |
922 | continue; | |
923 | } | |
924 | ||
925 | target_convert_to_virtual (i, raw_buffer, virtual_buffer); | |
926 | ||
927 | /* If virtual format is floating, print it that way, and in raw hex. */ | |
928 | if (TYPE_CODE (REGISTER_VIRTUAL_TYPE (i)) == TYPE_CODE_FLT | |
929 | && ! INVALID_FLOAT (virtual_buffer, REGISTER_VIRTUAL_SIZE (i))) | |
930 | { | |
931 | register int j; | |
932 | ||
933 | val_print (REGISTER_VIRTUAL_TYPE (i), virtual_buffer, 0, | |
934 | stdout, 0, 1, 0, Val_pretty_default); | |
935 | ||
936 | printf_filtered ("\t(raw 0x"); | |
937 | for (j = 0; j < REGISTER_RAW_SIZE (i); j++) | |
938 | printf_filtered ("%02x", (unsigned char)raw_buffer[j]); | |
939 | printf_filtered (")"); | |
940 | } | |
941 | ||
942 | /* FIXME! val_print probably can handle all of these cases now... */ | |
943 | ||
944 | /* Else if virtual format is too long for printf, | |
945 | print in hex a byte at a time. */ | |
946 | else if (REGISTER_VIRTUAL_SIZE (i) > sizeof (long)) | |
947 | { | |
948 | register int j; | |
949 | printf_filtered ("0x"); | |
950 | for (j = 0; j < REGISTER_VIRTUAL_SIZE (i); j++) | |
951 | printf_filtered ("%02x", (unsigned char)virtual_buffer[j]); | |
952 | } | |
953 | /* Else print as integer in hex and in decimal. */ | |
954 | else | |
955 | { | |
956 | val_print (REGISTER_VIRTUAL_TYPE (i), raw_buffer, 0, | |
957 | stdout, 'x', 1, 0, Val_pretty_default); | |
958 | printf_filtered ("\t"); | |
959 | val_print (REGISTER_VIRTUAL_TYPE (i), raw_buffer, 0, | |
960 | stdout, 0, 1, 0, Val_pretty_default); | |
961 | } | |
962 | ||
963 | /* The SPARC wants to print even-numbered float regs as doubles | |
964 | in addition to printing them as floats. */ | |
965 | #ifdef PRINT_REGISTER_HOOK | |
966 | PRINT_REGISTER_HOOK (i); | |
967 | #endif | |
968 | ||
969 | printf_filtered ("\n"); | |
970 | } | |
971 | } | |
972 | #endif /* no DO_REGISTERS_INFO. */ | |
973 | ||
974 | static void | |
ee0613d1 | 975 | registers_info (addr_exp, fpregs) |
bd5635a1 | 976 | char *addr_exp; |
ee0613d1 | 977 | int fpregs; |
bd5635a1 RP |
978 | { |
979 | int regnum; | |
980 | ||
981 | if (!target_has_registers) | |
982 | error ("The program has no registers now."); | |
983 | ||
984 | if (addr_exp) | |
985 | { | |
986 | if (*addr_exp >= '0' && *addr_exp <= '9') | |
987 | regnum = atoi (addr_exp); | |
988 | else | |
989 | { | |
990 | register char *p = addr_exp; | |
991 | if (p[0] == '$') | |
992 | p++; | |
993 | for (regnum = 0; regnum < NUM_REGS; regnum++) | |
994 | if (!strcmp (p, reg_names[regnum])) | |
995 | break; | |
996 | if (regnum == NUM_REGS) | |
997 | error ("%s: invalid register name.", addr_exp); | |
998 | } | |
999 | } | |
1000 | else | |
1001 | regnum = -1; | |
1002 | ||
ee0613d1 JG |
1003 | DO_REGISTERS_INFO(regnum, fpregs); |
1004 | } | |
1005 | ||
1006 | static void | |
1304f099 | 1007 | all_registers_info (addr_exp, from_tty) |
ee0613d1 | 1008 | char *addr_exp; |
1304f099 | 1009 | int from_tty; |
ee0613d1 JG |
1010 | { |
1011 | registers_info (addr_exp, 1); | |
1012 | } | |
1013 | ||
1014 | static void | |
1304f099 | 1015 | nofp_registers_info (addr_exp, from_tty) |
ee0613d1 | 1016 | char *addr_exp; |
1304f099 | 1017 | int from_tty; |
ee0613d1 JG |
1018 | { |
1019 | registers_info (addr_exp, 0); | |
bd5635a1 RP |
1020 | } |
1021 | \f | |
1022 | /* | |
1023 | * TODO: | |
1024 | * Should save/restore the tty state since it might be that the | |
1025 | * program to be debugged was started on this tty and it wants | |
1026 | * the tty in some state other than what we want. If it's running | |
1027 | * on another terminal or without a terminal, then saving and | |
1028 | * restoring the tty state is a harmless no-op. | |
1029 | * This only needs to be done if we are attaching to a process. | |
1030 | */ | |
1031 | ||
1032 | /* | |
1033 | * attach_command -- | |
1034 | * takes a program started up outside of gdb and ``attaches'' to it. | |
1035 | * This stops it cold in its tracks and allows us to start tracing it. | |
1036 | * For this to work, we must be able to send the process a | |
1037 | * signal and we must have the same effective uid as the program. | |
1038 | */ | |
1039 | void | |
1040 | attach_command (args, from_tty) | |
1041 | char *args; | |
1042 | int from_tty; | |
1043 | { | |
f266e564 | 1044 | dont_repeat (); /* Not for the faint of heart */ |
bd5635a1 RP |
1045 | target_attach (args, from_tty); |
1046 | } | |
1047 | ||
1048 | /* | |
1049 | * detach_command -- | |
1050 | * takes a program previously attached to and detaches it. | |
1051 | * The program resumes execution and will no longer stop | |
1052 | * on signals, etc. We better not have left any breakpoints | |
1053 | * in the program or it'll die when it hits one. For this | |
1054 | * to work, it may be necessary for the process to have been | |
1055 | * previously attached. It *might* work if the program was | |
1056 | * started via the normal ptrace (PTRACE_TRACEME). | |
1057 | */ | |
1058 | ||
1059 | static void | |
1060 | detach_command (args, from_tty) | |
1061 | char *args; | |
1062 | int from_tty; | |
1063 | { | |
f266e564 | 1064 | dont_repeat (); /* Not for the faint of heart */ |
bd5635a1 RP |
1065 | target_detach (args, from_tty); |
1066 | } | |
1067 | ||
1068 | /* ARGSUSED */ | |
1069 | static void | |
1304f099 | 1070 | float_info (addr_exp, from_tty) |
bd5635a1 | 1071 | char *addr_exp; |
1304f099 | 1072 | int from_tty; |
bd5635a1 RP |
1073 | { |
1074 | #ifdef FLOAT_INFO | |
1075 | FLOAT_INFO; | |
1076 | #else | |
1304f099 | 1077 | printf_filtered ("No floating point info available for this processor.\n"); |
bd5635a1 RP |
1078 | #endif |
1079 | } | |
1080 | \f | |
f266e564 JK |
1081 | struct cmd_list_element *unsetlist = NULL; |
1082 | ||
1083 | /* ARGSUSED */ | |
1084 | static void | |
1085 | unset_command (args, from_tty) | |
1086 | char *args; | |
1087 | int from_tty; | |
1088 | { | |
1304f099 | 1089 | printf_filtered ("\"unset\" must be followed by the name of an unset subcommand.\n"); |
f266e564 JK |
1090 | help_list (unsetlist, "unset ", -1, stdout); |
1091 | } | |
1092 | ||
bd5635a1 RP |
1093 | void |
1094 | _initialize_infcmd () | |
1095 | { | |
1096 | struct cmd_list_element *c; | |
1097 | ||
1098 | add_com ("tty", class_run, tty_command, | |
1099 | "Set terminal for future runs of program being debugged."); | |
1100 | ||
1101 | add_show_from_set | |
1102 | (add_set_cmd ("args", class_run, var_string_noescape, (char *)&inferior_args, | |
1103 | ||
1104 | "Set arguments to give program being debugged when it is started.\n\ | |
1105 | Follow this command with any number of args, to be passed to the program.", | |
1106 | &setlist), | |
1107 | &showlist); | |
1108 | ||
1109 | c = add_cmd | |
1110 | ("environment", no_class, environment_info, | |
1111 | "The environment to give the program, or one variable's value.\n\ | |
1112 | With an argument VAR, prints the value of environment variable VAR to\n\ | |
1113 | give the program being debugged. With no arguments, prints the entire\n\ | |
1114 | environment to be given to the program.", &showlist); | |
1115 | c->completer = noop_completer; | |
1116 | ||
f266e564 JK |
1117 | add_prefix_cmd ("unset", no_class, unset_command, |
1118 | "Complement to certain \"set\" commands", | |
1119 | &unsetlist, "unset ", 0, &cmdlist); | |
1120 | ||
bd5635a1 RP |
1121 | c = add_cmd ("environment", class_run, unset_environment_command, |
1122 | "Cancel environment variable VAR for the program.\n\ | |
1123 | This does not affect the program until the next \"run\" command.", | |
f266e564 | 1124 | &unsetlist); |
bd5635a1 RP |
1125 | c->completer = noop_completer; |
1126 | ||
1127 | c = add_cmd ("environment", class_run, set_environment_command, | |
1128 | "Set environment variable value to give the program.\n\ | |
1129 | Arguments are VAR VALUE where VAR is variable name and VALUE is value.\n\ | |
1130 | VALUES of environment variables are uninterpreted strings.\n\ | |
1131 | This does not affect the program until the next \"run\" command.", | |
1132 | &setlist); | |
1133 | c->completer = noop_completer; | |
1134 | ||
1135 | add_com ("path", class_files, path_command, | |
1136 | "Add directory DIR(s) to beginning of search path for object files.\n\ | |
1137 | $cwd in the path means the current working directory.\n\ | |
1138 | This path is equivalent to the $PATH shell variable. It is a list of\n\ | |
1139 | directories, separated by colons. These directories are searched to find\n\ | |
1140 | fully linked executable files and separately compiled object files as needed."); | |
1141 | ||
ee0613d1 | 1142 | c = add_cmd ("paths", no_class, path_info, |
bd5635a1 RP |
1143 | "Current search path for finding object files.\n\ |
1144 | $cwd in the path means the current working directory.\n\ | |
1145 | This path is equivalent to the $PATH shell variable. It is a list of\n\ | |
1146 | directories, separated by colons. These directories are searched to find\n\ | |
ee0613d1 JG |
1147 | fully linked executable files and separately compiled object files as needed.", &showlist); |
1148 | c->completer = noop_completer; | |
bd5635a1 RP |
1149 | |
1150 | add_com ("attach", class_run, attach_command, | |
1151 | "Attach to a process or file outside of GDB.\n\ | |
1152 | This command attaches to another target, of the same type as your last\n\ | |
1153 | `target' command (`info files' will show your target stack).\n\ | |
1154 | The command may take as argument a process id or a device file.\n\ | |
1155 | For a process id, you must have permission to send the process a signal,\n\ | |
1156 | and it must have the same effective uid as the debugger.\n\ | |
1157 | When using \"attach\", you should use the \"file\" command to specify\n\ | |
1158 | the program running in the process, and to load its symbol table."); | |
1159 | ||
1160 | add_com ("detach", class_run, detach_command, | |
1161 | "Detach a process or file previously attached.\n\ | |
1162 | If a process, it is no longer traced, and it continues its execution. If you\n\ | |
1163 | were debugging a file, the file is closed and gdb no longer accesses it."); | |
1164 | ||
1165 | add_com ("signal", class_run, signal_command, | |
1166 | "Continue program giving it signal number SIGNUMBER."); | |
1167 | ||
1168 | add_com ("stepi", class_run, stepi_command, | |
1169 | "Step one instruction exactly.\n\ | |
1170 | Argument N means do this N times (or till program stops for another reason)."); | |
1171 | add_com_alias ("si", "stepi", class_alias, 0); | |
1172 | ||
1173 | add_com ("nexti", class_run, nexti_command, | |
1174 | "Step one instruction, but proceed through subroutine calls.\n\ | |
1175 | Argument N means do this N times (or till program stops for another reason)."); | |
1176 | add_com_alias ("ni", "nexti", class_alias, 0); | |
1177 | ||
1178 | add_com ("finish", class_run, finish_command, | |
1179 | "Execute until selected stack frame returns.\n\ | |
1180 | Upon return, the value returned is printed and put in the value history."); | |
1181 | ||
1182 | add_com ("next", class_run, next_command, | |
1183 | "Step program, proceeding through subroutine calls.\n\ | |
1184 | Like the \"step\" command as long as subroutine calls do not happen;\n\ | |
1185 | when they do, the call is treated as one instruction.\n\ | |
1186 | Argument N means do this N times (or till program stops for another reason)."); | |
1187 | add_com_alias ("n", "next", class_run, 1); | |
1188 | ||
1189 | add_com ("step", class_run, step_command, | |
1190 | "Step program until it reaches a different source line.\n\ | |
1191 | Argument N means do this N times (or till program stops for another reason)."); | |
1192 | add_com_alias ("s", "step", class_run, 1); | |
1193 | ||
1194 | add_com ("until", class_run, until_command, | |
1195 | "Execute until the program reaches a source line greater than the current\n\ | |
1196 | or a specified line or address or function (same args as break command).\n\ | |
1197 | Execution will also stop upon exit from the current stack frame."); | |
1198 | add_com_alias ("u", "until", class_run, 1); | |
1199 | ||
1200 | add_com ("jump", class_run, jump_command, | |
1201 | "Continue program being debugged at specified line or address.\n\ | |
1202 | Give as argument either LINENUM or *ADDR, where ADDR is an expression\n\ | |
1203 | for an address to start at."); | |
1204 | ||
1205 | add_com ("continue", class_run, continue_command, | |
1206 | "Continue program being debugged, after signal or breakpoint.\n\ | |
1207 | If proceeding from breakpoint, a number N may be used as an argument:\n\ | |
1208 | then the same breakpoint won't break until the Nth time it is reached."); | |
1209 | add_com_alias ("c", "cont", class_run, 1); | |
1210 | add_com_alias ("fg", "cont", class_run, 1); | |
1211 | ||
1212 | add_com ("run", class_run, run_command, | |
1213 | "Start debugged program. You may specify arguments to give it.\n\ | |
1214 | Args may include \"*\", or \"[...]\"; they are expanded using \"sh\".\n\ | |
1215 | Input and output redirection with \">\", \"<\", or \">>\" are also allowed.\n\n\ | |
b4fde6fa | 1216 | With no arguments, uses arguments last specified (with \"run\" or \"set args\").\n\ |
bd5635a1 RP |
1217 | To cancel previous arguments and run with no arguments,\n\ |
1218 | use \"set args\" without arguments."); | |
1219 | add_com_alias ("r", "run", class_run, 1); | |
1220 | ||
ee0613d1 JG |
1221 | add_info ("registers", nofp_registers_info, |
1222 | "List of integer registers and their contents, for selected stack frame.\n\ | |
1223 | Register name as argument means describe only that register."); | |
1224 | ||
1225 | add_info ("all-registers", all_registers_info, | |
1226 | "List of all registers and their contents, for selected stack frame.\n\ | |
bd5635a1 RP |
1227 | Register name as argument means describe only that register."); |
1228 | ||
1229 | add_info ("program", program_info, | |
1230 | "Execution status of the program."); | |
1231 | ||
1232 | add_info ("float", float_info, | |
1233 | "Print the status of the floating point unit\n"); | |
1234 | ||
1235 | inferior_args = savestring ("", 1); /* Initially no args */ | |
1236 | inferior_environ = make_environ (); | |
1237 | init_environ (inferior_environ); | |
1238 | } |